Lock for pivoted windows.



F. MOLAUGHLIN. LOCK PoR PIvoTED WINDOWS.

APPLICATION FILED JAN.3, 1912.

P. MCLAUGHLIN.

LOCK PoR PIVOTBD WINDOWS.

APPLICATION FILED JAN.3, 1912.

1,073,268. Patented sept. 16,1913.

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FRANK MoLAUGI-ILIN, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR, BY MESNE ASSIGNMENTS, 'lO INTERNATIONAL WINDOW MANUFACTURING COMPANY, OF DOVER, DELAWARE, A CORPORATION OF DELAWARE.

Loon ron rrvo'rnn WINDOWS.

Speecation of Letters Patent.

Patented Sept. 16,1913.

Application filed January 3, 1912.v Serial No. 669,170.

To' all whom t may concern.'

Be it known that LFRANK MCLAUGHLIN, a vcitizen of the United .States,residing in Philadelphia, Pennsylvania, have invented certain Improvements in Locks for Pivoted I/Vindows, of which the following is a specification.

One object of my invention is to provide a novel form of devicewhereby a pivoted window sash may be retained either 'in its normal closed position or in any of a number of open positions in which it is inclined at an angle to the plane of the window frame; the arrangement of parts being such that the sash may be moved to a partially open position and held therein so as to permit oi' the entrance of greater or less amount of air, as may be desired.

Another objectof my invent-ion is Yto provide a locking or holding deviceV for a pivoted window', with means whereby itz may be operated'from the inside of a room in whosewall the window sash is mounted.

The invention further contemplates such a construction of the holding device as will permit of its automatic adjustment as the window sash is turned to various angles, and which will include a cover for the recess in which one of its parts operates; the arrangement being such that the cover shall be movable by 4such part and shall eiilectually prevent the entrance of airor solid material into the interior of the `window sill structure.Y

A `furthero-bject of `theinvention is to provide a novel form of sash holding device particularly adapted for use in conneet-ion with pivoted windows and made in two parts, of which one is carried by the sill andV the. other by the window sash; the arrangement' being such that the two parts are locked together' as long as the window Voccupies an inclined position, but are de- 'ends I secure as hereinafter setforth, reference being had to the accompanying drawings, in which:- l

A Figure 1 is a frontview illustrating my invention as applied to a lower window sash, Figs. 2 and 3, are vertical sections, of

In the above drawings, l represents a por@ tion of a window sill, and 2 is the body of a window sash having a pivot 3 connecting one side of its lower portion t-o one of a pair of slides 4l; it being understood that a second slide is similarly pivoted to the opposite side of said body. These slides, as is well understood in the art, are free to move veri tically in the guideways of the window frame and the arrangement is such that-'the body of the sash is free to turn on its pivots from the position shown shown in Fig.` 3. y

The window sill structure is recessed for the reception of a casting 5 (Fig. 4) which consists of a supporting framework formed of an angle piece 6 having a downwardly extending hollow guideway Y7. In this guideway is mounted Va slidable member 8 `having an abutment 9 whereby its downward movement in the guideway "7 is limited and provided at its upper end with a transverse slot l() whose section is that of an inverted T. Said member 8 is hollow and has centrally mounted in suitable holes a `longitudinally movable locking pin ll. On this lat-ter is mounted a spring 12 which is confined between a collar lll on the upper end of the pin and a transverse ledge 13; the arrangement beingrsuch that the pin is normally retained in an extended position at the upper end of the member 8 within the slot 10. Said member 8 is normally held with its abutment 9 against the edge 15 of the structure 5, by a spring 16 shown in Figs. 2 and 3; and is free to move upwardly from this position for a limited distance.

Mounted on the lower member Vof the window sash, is a plate 1S held in place by screws and having formed integral with it in Fig. 2 to that- Y it a number of yholes 21 which extend ink lines substantially radial to its center of curvature. rlhe proportions of the plate 19 and its .fla-nge 2O are such that they snugly fit the T-shaped slot 10 vofthe slide 8, al-4 though the curve of said flange, is not in this case concentric with the line fof the l pivots 3'.

Y *i Hinged tothe rear top edge of the part G is a cover plate 22 so placed that under operating conditions it is free to b'e moved by the sash as this is turned on its pivot-,from

1- the positionshown in Fig. 2 to that shown Vao j so

in Fig. 3.V lVhen said sash is in its normal position this plate is held by a small spring 23 in the closed position, thereby preventing the entrance of' air, water or foreign material into the casting 5. .A

For roperating the pin 111 provide a bellcrank lever 2a set in a suitable recess ofthe window frame and pivoted thereto at 25.; One arm of this lever is connected to the lower end of the locking pin 11, while itsy opposite end is attached to a rod 26 guided in a bushing 27 set in the window sill and provided with a head 28;

Withthe above described arrangement of parts, the window sash, when in its normal' position, is free to be moved up or down, since the flange 2O of the plate 18 doesnot, under these conditions, enter the slot 10, although it is held from swinging on the pivot?) by reason of the fact that the locking pin 11 enters one of the holes 21 inthe curved plate 20.

AllVhen it isdesired to openth'e window a Y a i ,a window sash mounted inthe frame and without raisin@ it the lookin() iin 11 is C f 7 D pulled downwardly out of engagement withV the .plate 2O by pressing inwardly on the head 28, which communicates such motion to the pin through the bell crank lever, in

opposition to the spring 12. As soonas the pin. 11 has been withdrawn, the sash may be turned on its pivots 3 to the desired angle and thereafter the releasing of the pressure on the head 28 will permit the locking pin, under the action of the spring 12 on its `collar 14, to be forced into one of the holes 21, thus locking the sash in the given inclined position. The turning the sash on its pivot not only enters the flanged plate 19 in the slot 10, but causes said plate to raise the cover plate 22 and in addition pulls upwardly the slide 8 in the'` casting 7 against the action of the spring' 15. While the sash the` 'll-shaped stri'ictur'e formed' by thev flanged plate 197 itis locked' to thefwindow sill after vbeing moved from the vertical position sufficiently to cause the lower end of the plate 19 to enter the slot` 10 in the top of the member 8. This T slotis longitudinallycurved to accommodate the curved plate 19 and its flange, 2O and inasmuch as t-he slidable member S is heldto the casting 5 both by its spring and the arm of the bell crank lever 24, the sash is .efl'ectually locked by my device against vertical movement as long as it is inclined.4 Y A If theypush rod y2628y be located on the inside of the window frame, it is obvious thatV when the sash is inclined irom'thever-v tical position it cannot be unlocked from the outside, so that. the window, although open to permit' vof ventilation.; is effectu'ally held so that it cannot be raised or further opened to effect an entry.

1. The combination otfa window frame;

a sash including slides and a body pivotedand the sash, and a slotted element for the reception of said flanged element mounted on the other of said memberswith a device for locking the flanged Velementin any of a number of positions in engagement with the slotted element. y

2. The combination of awindow frame; a sash `mounted in theV frame and consisting of slides with a .body ivoted thereto; a

vslotted. memberv mounte in the window `frame adjacent to the lower portion4 of the sash; a flanged member carried by thek sash and capable ofentering the slottedlmemloer when the sash` bodyis turned on its pivots; with a locking pin mountedin the slotted member for holding the sashV inf any of a number of inclined positions.

3. The combina-tion cfa window frame;

consisting of slides with a body pivotally connected thereto; a vertically slidable slotted structure mounted in the frame adjacent one end of the sash; a' spring normally holding said structure in aretracted position; a spr1ng-actuated locking-pin carried by said structure; and a flanged member mounted on the window sash in position to frame and having a series of openings for the reception of the locking pin;

L1 The combinationgof a window frame; a window sash` mountedyin the frame and consisting" of slides with abody pivotally connected thereto; VVa vertically slidalole slotted structure mounted'in the frame' adj` acent one end of the sash; a spring normally holding said structure in retracted posi? enter the slot of the 'structure on thewindowtion; aspring-actuated locking-pin carried by said structure; a flanged member mounted on the window sash in position to enter the slot of the structure on the window frame and having a series of openings for Y the reception oi" the locking pin; with a hand-operated device for withdrawing the pin from engagement with the flanged member.

V5. The combinationY of a window frame having a slotted'member mounted in a re-` 4 cess below the top surface of its sill; a sash slidably mounted in the frame and consisting of a pair of slides with a body pivoted thereto; a flanged member mounted on the lower portion of the sash and projecting into the recess in the sill when said sash is in its closed position; a coverfor a portion ot the Copies ofthis patent may b `obtained for consisting of a pair of slides with a body pivoted thereto; a curved plate mounted on the sash body with its center line to one side of the line of the pivots and provided with a laterally projecting flange having openings; a guide structure mounted in the window frame; a slidable member mounted in said structure and provided with an undercut slot for the reception of the flange of said plate on the sash; a springeactuated locking-pin mounted on the slidable member in position to enter any of a number of openings in the flanged plate of the sash; a spring placed to resist movement of the slid able member; and a hand-operated device for actuating the said pin.

In testimony whereof, I have signed my name to this specification, in the presence of two subscribing witnesses.

FRANK MoLAUGI-ILIN.

Witnesses:

WILLIAM I. BRADLEY, WM. A. BARR.

ive cents each, by addressing the Commissioner of Patents, Washington1 D. G. 

